State Cancer Profiles

Interpretation of Demographics Data

Demographic Data Report for Montana by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Value

United States

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 48.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 160,683,909.
• Rank within US : N/A

Montana

• 2023 Rural-Urban Continuum Codes Φ : N/A
• Value (Percent) : The value is 50.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 555,816.
• Rank within US : This state is ranked 12 of 52

Roosevelt County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 36.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,935.
• Rank within US : This county is ranked 3095 of 3143

Big Horn County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 40.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,307.
• Rank within US : This county is ranked 2990 of 3143

Gallatin County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 41.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 50,292.
• Rank within US : This county is ranked 2972 of 3143

Glacier County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 41.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,670.
• Rank within US : This county is ranked 2967 of 3143

Hill County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 43.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,005.
• Rank within US : This county is ranked 2883 of 3143

Blaine County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 43.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,075.
• Rank within US : This county is ranked 2829 of 3143

Missoula County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 45.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 54,271.
• Rank within US : This county is ranked 2724 of 3143

Rosebud County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 46.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,796.
• Rank within US : This county is ranked 2648 of 3143

Liberty County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 46.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 909.
• Rank within US : This county is ranked 2633 of 3143

Fallon County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 46.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,310.
• Rank within US : This county is ranked 2597 of 3143

Richland County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 47.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,348.
• Rank within US : This county is ranked 2510 of 3143

Cascade County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 48.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 40,615.
• Rank within US : This county is ranked 2413 of 3143

Yellowstone County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 48.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 80,993.
• Rank within US : This county is ranked 2334 of 3143

Toole County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 49.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,498.
• Rank within US : This county is ranked 2071 of 3143

Silver Bow County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 50.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 17,902.
• Rank within US : This county is ranked 1935 of 3143

Pondera County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 51.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,091.
• Rank within US : This county is ranked 1669 of 3143

Lewis and Clark County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 51.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 37,483.
• Rank within US : This county is ranked 1629 of 3143

Chouteau County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 52.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,061.
• Rank within US : This county is ranked 1517 of 3143

Dawson County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 52.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,649.
• Rank within US : This county is ranked 1415 of 3143

Teton County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 52.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,322.
• Rank within US : This county is ranked 1309 of 3143

Beaverhead County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 52.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,075.
• Rank within US : This county is ranked 1283 of 3143

Flathead County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 53.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 57,519.
• Rank within US : This county is ranked 1255 of 3143

Valley County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 53.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,051.
• Rank within US : This county is ranked 1099 of 3143

Sweet Grass County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 54.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,009.
• Rank within US : This county is ranked 1011 of 3143

Custer County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 54.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,466.
• Rank within US : This county is ranked 977 of 3143

Lake County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 54.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 17,440.
• Rank within US : This county is ranked 936 of 3143

Wibaux County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 54.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 624.
• Rank within US : This county is ranked 936 of 3143

Fergus County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,373.
• Rank within US : This county is ranked 818 of 3143

Garfield County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 55.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 517.
• Rank within US : This county is ranked 797 of 3143

Powell County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 55.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,895.
• Rank within US : This county is ranked 755 of 3143

Sheridan County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 56.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,064.
• Rank within US : This county is ranked 640 of 3143

Wheatland County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 56.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,152.
• Rank within US : This county is ranked 630 of 3143

Stillwater County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 58.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,265.
• Rank within US : This county is ranked 409 of 3143

Treasure County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 58.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 443.
• Rank within US : This county is ranked 409 of 3143

Jefferson County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 58.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,287.
• Rank within US : This county is ranked 396 of 3143

Phillips County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 58.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,473.
• Rank within US : This county is ranked 371 of 3143

Mineral County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 58.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,823.
• Rank within US : This county is ranked 340 of 3143

Prairie County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 59.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 738.
• Rank within US : This county is ranked 327 of 3143

Daniels County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 59.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 909.
• Rank within US : This county is ranked 288 of 3143

Ravalli County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 59.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 27,349.
• Rank within US : This county is ranked 284 of 3143

Broadwater County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 59.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,375.
• Rank within US : This county is ranked 272 of 3143

Park County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 59.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,473.
• Rank within US : This county is ranked 262 of 3143

Powder River County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 60.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,064.
• Rank within US : This county is ranked 234 of 3143

Judith Basin County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 60.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,248.
• Rank within US : This county is ranked 213 of 3143

McCone County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 61.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,114.
• Rank within US : This county is ranked 183 of 3143

Golden Valley County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 61.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 517.
• Rank within US : This county is ranked 177 of 3143

Deer Lodge County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 62.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,896.
• Rank within US : This county is ranked 163 of 3143

Carbon County

• 2023 Rural-Urban Continuum Codes Φ : Urban
• Value (Percent) : The value is 62.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,774.
• Rank within US : This county is ranked 151 of 3143

Musselshell County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 63.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,193.
• Rank within US : This county is ranked 130 of 3143

Madison County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 63.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,686.
• Rank within US : This county is ranked 115 of 3143

Lincoln County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 63.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 13,176.
• Rank within US : This county is ranked 100 of 3143

Carter County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 64.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 871.
• Rank within US : This county is ranked 95 of 3143

Sanders County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 65.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,467.
• Rank within US : This county is ranked 63 of 3143

Granite County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 65.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,253.
• Rank within US : This county is ranked 56 of 3143

Meagher County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 71.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,412.
• Rank within US : This county is ranked 13 of 3143

Petroleum County

• 2023 Rural-Urban Continuum Codes Φ : Rural
• Value (Percent) : The value is 73.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 293.
• Rank within US : This county is ranked 6 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 07/09/2025 10:17 am.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, see the dictionary.

Data for United States does not include Puerto Rico.